铲运机的作业循环

问一道数学题 高分! 速度解某生活小区建一个如图形状的门楼,半圆拱的圆心距距地面2m,半径1.5m,现有一辆高2.9m,宽2.5m的集装箱车,能通过么?理由? 1.育才小学六（1）班共用45名同学,现在派他们到6个社区参加劳动,每个社区只能派奇数个同学.你能完成分配任务吗?2.将下面8个数平均分成两组,使这两组的乘积相等,可以怎样分?14、30、33、35 关于这样两道数学题求详解（需要有过程哟）21题只需要求解2、3问即可21题只需要求解2、3问即可 且推理正确。 花坛有月季和菊花,其中菊花盆数占花总数的4/9,后来又搬来了2盆月季,这时菊花占花总数的3/7,花坛现在一共有多少盆花? 大江东去浪淘尽，千古风流数人物。而立之年督东吴，早逝因年两位数。十位恰小个位三，个位平方与寿符。那位学子算的快，多少年华数周瑜？（通过列方程，算出周瑜去世时的年龄） A、B两地分别有20、30吨苹果,C、D两市分别要购进15、35吨苹果.已知A、B到C、D的运价如下：A-C15元/吨.A-D12元/吨.B-C10元/吨.B-D9元/吨.设计最佳运输方案,使总运费最少.最少是多少?不要光给答案,还 如图,点E,C在BF上,BE=FC,∠ABC=∠DEF=45°,∠A=∠D=90°,AB=DE（1)若AC交DE于M,且AB=√3,ME=√2,将线段CE绕点C顺时针旋转,使点E旋转到AB上的G处,求旋转角∠ECG的度数. 求做数学题,请尽量正确. 请尽量正确.请说出理由! 数学题求解.在线等解,请尽量正确. 求做数学题, 求做数学题请尽量正确, 已知RT三角形 AC=4 AB=6 BC为什么等于 “2倍根号5” 两堆石灰共1764千克,第一堆用去他的1/3,第二堆用去504千克,所剩的石灰一样多.两堆石灰原来各多少千克?能不能把这题的解答过程再写得详细一点? 01.已知三条线段的长分别为22cm、16cm、18cm,以哪两条为对角线,其余一条为边,可以画出平行四边形? 求高手解数学题几道.要步骤,谢谢.解方程（1）3（x-7）-5（x-4）=15（2）2x-1/3=1-5x＋2/2(5x＋2/2是一个分数）（3）3/2【2（x-2/3）＋4/3】=1谢谢了. 按一个数的因数个数的多少,自然数可以分为（ ）、（ ）、（ ）. 在△ABC中,AC垂直于BC,AD为角BAC的平分线,DE垂直于AB,AB=7cm,AC=3cm,求BE的长 两地相距13千米,甲乙两人从两地同时出发相向而行,经过三分之四小时相遇,甲每小时行5千米,乙每小时行多少千米?（用方程和算术两种解法） 大家帮忙解答下数学题好吗?证明：√1+√1/2+√1/3+……√1/n＞√n (n≥2,n∈N） 英语翻译A store normally sells each of its DVDs for $20.At a sale,Phyllis buys two DVDs at the regelur price and gets a third DVD for half price.This is the same rate of discount as getting ( )A 2 for the price 1B 3 for the price 2C 4 for the pri 英语翻译Ten years ago,the mean age of a band of 11 musicians was 30.One of them is now leaving the band at the age of 40.What is the present mean age of the remaining 10 musicians?The mean of (a + 4),(b + 5),(c – 3) is 6.The mean of (a – 7),( 高手进,2道英文数学题的翻译1.Use the quadratic formula to prove that the roots of such an equation must have -a/b as their sum and a/c as their product.2.Prove that the sum of the squares of the roots of such an equation is a/b-2ac. （Hin 英语翻译1.wonderr gal gave superguy a 5s head start in a 1km race.if wonder gal ran at 5km/min and superguy ran at 3 km/min,who won the race?2.a train 1000 m long travels through a 3km tunnel.if 30 seconds elapse from the time the last carriage e 英语翻译A right triangle is inscribed in a circle with radius 26 cm.IF the length of one of the legs of this triangle is 20 cm,find the difference between the area of the circle in which the triangle is inscribed and the area of the inscribed cir 英语翻译Three fair six-sided dice are rolled.what is the probability that the values shown on two of the dice sum to the value shown on the remaining die? 英语翻译If we let be the greatest prime number not more than a,than the result of the expression< ×× > is ( ) 这是一道数学题,请翻译. 英语翻译Pencils cost 27 pence each and erasers cost 30 pence each .Jim has ￡2.00 to spend on pencils and erasers.He buys n pencils and 2 erasers.Write down an inequality in n.What is the largest number of pencils Jim bought? 英文的数学题the ratio of blue marbles to green marbled in a bag is 2 to 5 .there are 25 green marbles how many marbles in which color would you have to add to make the ratio请回答该问题.并且解释为何要这样算 英语翻译14.In the,a middle school football conference,each team plays every other team exactly once.If a total of 21 conference games were played during the 2012 season,how many teams were members of the BIG N conference?SolutionThis problem is v 求英文的数学题最好是美国初中生的数学卷,或者同等难度的也可以,请问哪有类似的资源下载啊!最好发个地址, 急~~帮忙,英文数学题!An item marked at $M is sold at a discount of 2%. If the selling price of the item is $(M-0.12),find the value of M.